Which statement about value-added taxes best develops the central idea of this text? a. they are added on to the cost of items sold. b. they are set at a specific rate. c. they states pay for public services. d. they include taxes paid by the manufacturers. this is from the story "the price isn't always right"

The correct answer is A.

It's not B because the text tells that everyone who pays this value-added tax pays the same (19% of the cost of the product minus the already paid value-added taxes). This rate is variable depending on the number of intermediaries and the amount that they already paid.

It's not C because the text does not say anything about the use of the taxes money by the state.

D isn't correct because the text also includes taxes paid by other intermediaries like hose manufacturers and retail stores.

what are the options?